Factors associated with Subsequent Eye Care for Children in Taiwan: A Population-based Historical Cohort Study

Objectives To evaluate incidence rates of Lyme disease in the UK and to investigate a possible association with subsequent fatigue Design Population-based historical cohort study with a comparator cohort matched by age, sex, and general practice Setting Patients treated in UK general practices contributing to IQVIA Medical Research Data Participants 2,130 patients with a first diagnosis of Lyme disease between 2000 and 2018, and 8,510 randomly-sampled matched comparators, followed-up for a median time of 3 years and 8 months. Main outcome measures Time from Lyme disease diagnosis to consultation for any fatigue-related symptoms or diagnosis and for myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). Adjusted hazard ratios (HRs) were estimated from Cox models. Results Average incidence rate for Lyme disease across the UK was 5.18 per 100,000 py between 2000 and 2018, increasing from 2.55 in 2000 to 9.33 in 2018. In total 929 events of any types of fatigue were observed, i.e. an incidence rate of 307.90 per 10,000 py in the Lyme cohort (282 events) and 165.60 in the comparator cohort (647 events). Effect of Lyme disease on any subsequent fatigue varied by index season with highest adjusted HRs in autumn [3.14 (95%CI: 1.92 to 5.13)] and winter [2.23 (1.21 to 4.11)]. Incidence rates of ME/CFS were 11.16 per 10,000 py in Lyme patients (12 events) and 1.20 in comparators (5 events), corresponding to an adjusted HR of 16.95 (5.17 to 55.60). Effect on any types of fatigue and ME/CFS was attenuated 6 months after diagnosis but still clearly visible. Conclusions UK primary care records provided strong evidence that Lyme disease was associated with acute and chronic fatigue. Albeit weaker, these effects persisted beyond 6 months, suggesting that patients and healthcare providers should remain alert to fatigue symptoms months to years following Lyme disease diagnosis.

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Persistence with Statins and Incident Cataract: A Population-Based Historical Cohort Study

Annals of Epidemiology ◽

10.1016/j.annepidem.2009.10.007 ◽

2010 ◽

Vol 20 (2) ◽

pp. 136-142 ◽

Cited By ~ 33

Author(s):

Gabriel Chodick ◽

Anthony D. Heymann ◽

Shira Flash ◽

Ehud Kokia ◽

Varda Shalev

Keyword(s):

Cohort Study ◽

Population Based ◽

Historical Cohort ◽

Historical Cohort Study

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Factors Associated with Follow-Up of Children Exposed to Mother-to-Child Transmission of HIV: A Historical Cohort Study Form 2000 to 2017, in Porto Alegre, Brazil.

10.21203/rs.3.rs-764111/v1 ◽

2021 ◽

Author(s):

Karen da Silva Calvo ◽

Daniela Riva Knauth ◽

Bruna Hentges ◽

Andrea Fachel Leal ◽

Mariana Alberto da Silva ◽

...

Keyword(s):

Cohort Study ◽

Prenatal Care ◽

Pregnant Women ◽

Epidemiological Surveillance ◽

Historical Cohort ◽

Loss To Follow Up ◽

Factors Associated ◽

Historical Cohort Study ◽

Years Of Schooling

Abstract Background: There are many inequalities in terms of prevention and treatment for pregnant women with HIV and exposed children in low and middle income countries. The Brazilian protocol for prenatal care includes rapid diagnostic testing for HIV, compulsory notification, and monitoring by the epidemiological surveillance of children exposed to HIV until 18 months after delivery. The case is closed after HIV serology results are obtained. Loss to follow-up is defined as a child who was not located at the end of the case, and, therefore, did not have a laboratory diagnosis. Loss to follow-up is a current problem and has been documented in other countries. This study analyzed the incidence of loss to follow-up of children exposed to HIV and the sociodemographic, behavioral and health variables of associated pregnant women. Methods: This historical cohort study included information on pregnant women living with HIV and the outcome of the child’s exposure to HIV. The association between predictors and the child’s outcome as a loss to follow-up was investigated using the Poisson Regression model. Relative Risk calculations were performed. The significance level of 5% was adopted for variables in the adjusted model. Results: Between 2000 and 2017, of 6,836 children exposed to HIV, 1,763 (25.8%) were classified as loss to follow-up. The factors associated were: maternal age of up to 22 years (aRR 1.25, 95% CI: 1.09-1.43), the mother’s self-declared race/color being black or mixed (aRR 1.13, 95% CI: 1.03-1.25), up to three years of schooling (aRR 1.45, 95% CI: 1.26-1.67), between four and seven years of schooling (aRR 1.14, 95% CI: 1.02-1.28), intravenous drug use (aRR 1.29, 95% CI: 1.12-1.50), and HIV diagnosis during prenatal care or at delivery (aRR 1.37, 95% CI: 1.24-1.52). Conclusion: Variables related to the individual, social and programmatic vulnerability of pregnant women were evidenced.

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